POLEMONIACE^. 292 



exserted stamens and style which are twice the length of the bell-shaped 

 corollas. Leaves few, on long, clasping petioles, with about 5 distinct leaflets, 

 the upper 3 more or less confluent at base, all irregularly toothed. Corollas 

 Tarying from white to sky blue. Ju. Per. Virginiun Water-leaf. 



2. H. Canade'nse. 



Plant somewhat hairy ; leaves subpalmately lobed, angular, cordate ; flowers 

 in crowded fascicles ; ■peduncles shorter than the petioles. Similar in aspect 

 to the last. Found in alpine woods. Stem 12 — 18 inches high, with large^ 

 roughisii leaves, divided into 5 — 7 lobes Fascicles of flowers dense, axillary 

 and terminal. Corollas white, or variously tinged with parple. Stamens and 

 style much exserted, as in the last. Jn., Ji. Per. Canadian Water-leaf . 



ORDER XCVni. POLEMONl ACE^. n. Gtu, Vateren^ TnU. 



Cat.— 5 united sepals, inferior, persistent, sometimes irregular. 



Cor. — 5 united petals, regular, the lobes imbrieale or twisted in aestivation. 



Sm.— 5, inserted into the midst of the corolla tube and alternate with its lobes. 



O-fz.— 3-celled, free. StijUs united into 1. Stigma trifid. 



Ciz/i.'.— 3-celled, 3-valved, loewlicidal, valves also separating from the 3-comered axis. 



Sds. — Few or many. Albvmen horny. Embryo tbliaceous. 



Chiefly North American herbs. Leaves opposite or Eilternate, siraple or divided. Th*^ 

 are valued only in cnltivatioii as ornamental plants. 



Genera. 

 Corolla salver-form. Capsule 3-seeded. Leave.s opposite, simple. . . Pklox. t 



Corolla bell-shaped. Capsule many-seeded. Leaves alternate, pinnate. Polemonium.^ 



1 . PHLOX. 



Calyx prismatic, deeply S-cieft; corolla hypocrateriform, 

 the tube more or less curved ; stamens very unequal, inserted 

 in the tube of the corolla above the middle; capsule 3-celled^ 

 cells 1-seeded. 



Gr. <pXo|, a flame ; from the color and profusion of the flowers. A highly 

 ornamental and much cultivated, North American genus. Lvs. mostly 

 opposite, sessile, simple. Fls. in terminal panicles. Cal. segment erect oir 

 converging. Cor. limb flat, in 5, cuneiiorm lobes. Caps, roundish-ovoid, 

 Sds. oblong, concave. 



L P. DIVARICATA. 



Low, diff"use, pubescent; hates broadly lanceolate, acute, upper ones 

 alternate; 7)tf««c?e loose, corymbose ; ;y«/tr//f/« diverging; calyx tceih linear, 

 subulate; segments of corolla coTdate. Grows in moist soils, N. Y. Stems 

 numerous, decumbent, 1 — 2 feet long. Flowers of a peculiar light but bril- 

 liant grayish-blue ; the buds violet. May. Per. Early-flotoering Lijchnidta. 



2. P. panicula'ta. 



&<em smooth, erect; Zfores lanceolate, tapering, rough-edged, flat ; corymbs 

 panicled ; cffl/?/a; awned ; scirmtnts of the corolla rounded. This well-known 

 favorite of our gardens is found native in many parts of the U. S. though 

 perhaps not in N. England. It flourishes in rich, moist soil, or in leaf-mould 

 and peat. Stem 2—3 feet high, ending in a large panicle of innumerable, 

 pink-colored, scentless flowers, continuing in blossom from July to Sept. Per. 



Panklcd Lychnidsa. 



p. alba has white, fragrant blossoms. 



